Door stop and holder.



PATENTED MAY 1, 1906.

F. LIPVENDAHL.

DOOR STOP AND HOLDER. APPLICATION FILED SEPT. e, 1904.

2 SHEETS-SHEET 1.

IIIIIHHHHHHI I No. 819,356.- PATENTED MAY 1, 1906. A. F. LIFVENDAHL.

DOOR STOP AND HOLDER. APPLICATION FILED SEPT. e, 1904.

2 sums-sum 2.

UNITED STATES PATENT OFFICE.

DOOR STOP AND HOLDER.-

Specification of Letters Patent.

Patented May 1, 1906.

Application filed Sept ember 6,1904. Serial No. 223,358.

To all whom it may concern:

Be it known that I, AXELF. LIFVENDAHL, a citizen of the United States ofAmerica, residing at Chicago, in the county of Cook and State of,Illinois, have invented a certain new and useful Improved Door Stop andHolder, of which the following is a description.

My invention relates to means for preventing a hinged or pivoted doorfrom being opened beyond a certain fixed point in combination with meansfor holding the door open to that fixed point when desired.

The object of my invention is to produce a device of the kind describedsimple and eifective in construction and operation and capable ofwithstanding the rough treatment such a device is subjected to ingeneral service, and in which the adjustment required when the device isto be employed as a doorholder may be made by a simple movement of apart or parts of the device which will cause it to operate to hold thedoor open when next the door is opened to its limit of move-.

ment.

A further object is to provide a device neat and attractive inappearance and one which will not mar the adjacent woodwork or glass norform a permanent obstruction upon the floor or walk and firmly hold thedoor open novel construction, arrangement, and

when employed for that purpose.

To this end my invention consists in the combination of parts hereinshown and described, and more particularly pointed out in the claims.

In the accompanying drawings, wherein like or similar referencecharacters indicate like or corresponding parts, Figure 1 is a plan viewof my device with a portion broken away to more clearly show theconstruction.

Fig. 2 is an'elevation of my device. Fig. 3 is.

a sectiontaken substantially on line 3 3 of Fig. 1. Fig. 4 is anenlarged section of the locking portion. Fig. 5 is an enlargedperspective view of a detail. Fig. 6 is a perspective view of a door andits frame with my device in operative position when the door is open.Fig. 7 is a section taken substantially on line 7 7 of Fig. 6.

In the preferred form of my device shown in the drawings, 1 is a bracketadapted to be attached to the upper end of a door 2 in any referredmanner. The arms 3 and 4 are 'nged together at 5, and each arm at thehinge may be provided with a shoulder 6 6, so arranged as to abut toprevent the adjaengagement with the part 8.

cent ends of the arms moving to any extent beyond the center line whenthe device is operated very rapidly. The free end of the arm 3 issuitably formed to engage with the bracket 1 to form a hinged connectionand thereby attach the arm to the door, while the free end of the arm 4is formed to be engaged with a head 7 to attach that arm to thehead-casing or other convenient parts of the door-frame.

In the construction shown in the drawings a circular portion 8 is formedu on the end of the arm 4, adapted to beheld etween the parts 9 and 10of the head 7 by the bolt 11 passing centrally through the part 8 andarranged to hold the parts 9 and 10 in suitable relation therewith bymeans of the nut 11*. Preferably an annular recess is formed in theadjacent faces of the parts 8 and 9 and a helical spring 12 arrangedwithin this recess with its ends engaged, respectively, with the parts 8and 9 in such positions that when the device is in position upon a doorthe spring 12 tends to normally hold the arni 4 in the position shown inFig. 1 or in the position they occupy when the door-is closed. thisspecification where I refer to the arms as closed it is to be understoodas indicating the ab ove-described position. To strengthen my device andprevent the bolt 11 frombending, I provide a semicylindrical flange 14upon the head 7 and secure the part 10 to this flange against lateralmovement by suitable pins or screws. The flange 14 also serves as aconvenient means for supporting the sleeve 15, containinga sprin-actuated pi n 16, arranged to engagea suita le recess 17 1n theperiphery of the part 8 when my device to be employed to hold the dooropen. Preferably on one side of the sleeve 15 I pro vide a longitudinalslot 18, withashort lateral extension 19 at its outer end, and arrange astud 20 upon the pin 16 and projecting into the slot. When it is desiredto use my device as a door-stop only, the in 16 is drawn outward bymeans of a suitab e knob 21 until the end of the pin clears the openingin the part 8 and the stud 20 is in position to enter the lateral slotextension 19, when by partially rotating the pin the stud will enter theslot extension and prevent the spring 22, preferably arranged within theouter end of the sleeve 15 and engaging the enlarged head of the pin 16,from returning the same into Preferably when attaching my device to adoor it should be so positioned and arranged that when the pm 16 is inengagement with the recess 17 in the part 8 the center of the hinge 5will lie in line with the centers of the hinges at the other ends of thearms, thus practically relieving the-pin 16 from all strain, except thatcaused by the tension in the spring 12, regardless of the pressure uponthe door tending to close the same.

It is evident that while I have described the preferred form of mydevice that the construction may be modified in a number of Ways withoutchanging its general operation.

or example, it is obvious that the spring 12 may be arranged upon thebracket 1 or at the hinge 5, if preferred. The head 7 may also bemodified in a variety of ways to better adapt it to particularconditions or cheapen 1ts construction, and in some cases it may bedesirable to attach the head 7 to the door and the bracket 1 to thecasing or adjacent parts.

What I claim as new, and desire to secure by Letters Patent, is-

1. A device of the kind described, com prismg a pair ofpivotally-connected arms, each arm provided with means for pivotallyattaching its free end to one of two objects united by a hingedconnection thereby when said arms are extended limiting the action ofsaid connection, in combination with resilient means tending to normallyhold the arms partly closed.

2. A device of the kind described, comprising a pair ofpivotally-connected arms, each arm provided with means for pivotallyattaching 1ts free end to one of two objects united by means of. ahinged connection thereby when said arms are extended limiting theaction of said connection, in combination with resilient means tendingto normally hold the arms partly closed and a lock adapted when engagedto hold the pivotal connections to said arms in a straight line.

3. A device of the kind described, comprising a pair ofpivotally-connected arms each arm provided with means for pivotallyattaching its free end to one of two objects united by means of a hingedconnection, thereby when said arms are extended limiting the action ofsaid connection, in combination with resilient means tending normally tohold the arms partly closed and locking means adapted to engage one ofthe pivotal connections of said arms to fixedly maintain the same in acertain position.

4. A device of the kind described, comprising a pair ofpivotally-connected arms, each arm provided with means for pivotallyattaching its free end to one of two objects united by means of a hingedconnection, and adapted to limit the action of said connection, incombination with resilient means tending to normally hold the armspartly closed and a bolt adapted to engage one of the pivotalconnections of said arms to fixedly maintain said arm in a certainposition.

5. In a device of the kind described, the pivotally-connected arms oneof which is provided with a bracket at its free end adapted to besecured to one of a pair of hinged parts, in combination with a headpivotally carried upon the free end of the other arm and comprising aplate adapted to be secured to the other member of thepivotally-connected pair and provided with intermediate resilient meanspositioned between the plate and the free end of the arm and when theparts are in place tending to normally hold the arms partly closed.

6. In a device of the kind described, a head comprising a plate adaptedto be secured to a movable part, an arm pivotally connected to the plateby a bolt securing the parts in position, in combination with a springintermediately arranged between the arm and plate and having one endconnected to the arm and the other end to the plate.

7. In a device of the kind described, a head comprising a plate adaptedto be secured to a movable part and provided with a springpocket, incombination with an arm pivotally connected to the head by a boltcentrally positioned in the pocket, a helical spring centrally arrangedwithin the pocket and having one end connected with the arm and theother with the plate and a retaining-plate carried by the bolt andadapted to partially inclose and retain the parts 111 position.

8. In a device of the kind described, pivot-. ally-connected arms one ofwhich is provided With a bracket at its free end adapted to be securedto one of a pair of hinged parts, in combination with a head pivotallycarried .upon the free end of the other arm comprising a plate adaptedtobe secured to the other member of the pivotally-connected pair andprovided with intermediate resilient means positioned between the plateand the free end of the arm, tending, when the parts are in place tonormally hold the arms partly closed, and locking means adapted whenengaged to prevent the closing of said arms.

9. In a device of the kind described, ahead comprising a plate adaptedto be secured upon a movable part and provided with a recessed chamber,and a spring arranged within said chamber, in combination with an armresiliently and pivotally connected to said plate by said spring, meansfor securing the parts in said position, and locking means adapted toengage the pivotal connection of said arm to fixedly maintain the samein a certain position.

10. In a device of the kind described, a head comprising a plate adaptedto be secured to a movable part, an arm pivotally connected to the plateby a bolt securing the parts in position, in combination with a springintermediately arranged between the arm and plate, having one endconnected to the arm and the other end to the plate, and locking meansconnected to the plate adapted to engage' said arm to fixedly maintainthe same in a certain position.

11. In a device of the kind described, a head comprising a plate adaptedto be secured to a movable part and provided with a spring-pocket, incombination With an arm plvotally connected to the head by a boltcentrally positioned in the pocket, ahelical spring centrally arrangedWithin the lpocket and having one end connected With t e arm and theother with the plate and a retainingplate carried by the bolt andadapted to partiall inclose and retain the parts in position, and ockingmeans adapted to engage the pivotal connection of said arm to fixedlymain tain the same in a certain position.

In testimony whereof I have hereunto signed my name in the presence oftWo subscribing Witnesses. Y AXEL ,F. LIFVENDAHL. Witnesses:

BURTON U. HILLS, CHARLES I. COBB.

